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2170002222005 = 5888134886677
BaseRepresentation
bin11111100100111110001…
…101100010101110110101
321200110011012000112002212
4133210332031202232311
5241023131032101010
64340515114343205
7312530451356252
oct37447615425665
97613135015085
102170002222005
11767324756422
122b068942ab05
13129826ab8947
1477058944429
153b6a7b16505
hex1f93e362bb5

2170002222005 has 8 divisors (see below), whose sum is σ = 2604032519352. Its totient is φ = 1735981875648.

The previous prime is 2170002222001. The next prime is 2170002222007. The reversal of 2170002222005 is 5002222000712.

It can be written as a sum of positive squares in 4 ways, for example, as 1525973501809 + 644028720196 = 1235303^2 + 802514^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2170002222005 - 22 = 2170002222001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170002222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1999274 + ... + 2887403.

It is an arithmetic number, because the mean of its divisors is an integer number (325504064919).

Almost surely, 22170002222005 is an apocalyptic number.

It is an amenable number.

2170002222005 is a deficient number, since it is larger than the sum of its proper divisors (434030297347).

2170002222005 is an equidigital number, since it uses as much as digits as its factorization.

2170002222005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975495.

The product of its (nonzero) digits is 1120, while the sum is 23.

Adding to 2170002222005 its reverse (5002222000712), we get a palindrome (7172224222717).

The spelling of 2170002222005 in words is "two trillion, one hundred seventy billion, two million, two hundred twenty-two thousand, five".

Divisors: 1 5 88813 444065 4886677 24433385 434000444401 2170002222005